Basically, NPC's that do the farming for you. You need to have several farming related items in their home, including a storage container where they can store the crops and farming supplies they need. Once they are created, you can take a wiring kit, create a craftable farming perimeter and storage unit, and set it up by placing it around the crops and livestock you want harvested. Then the farmers hoe, water, harvest, and replant the crops as needed for you. All the player has to do is take the harvest before it spoils and do with them as they wish. It would also be nice to have a spoilage meter on food so it can be determined how long before it's inedible.